Rudder shaft large bending moment loading device
A loading device, large bending moment technology, applied in the direction of measuring device, using stable bending force to test the strength of materials, instruments, etc., can solve the problems of difficult control of loading force, inconvenient operation, large loading rigidity, etc., and achieve force transmission Reduced rigidity, simple structure and convenient operation
Inactive Publication Date: 2019-12-03
TIANJIN JINHANG COMP TECH RES INST
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Problems solved by technology
At present, for the test of the bending moment borne by the rudder shaft, hydraulic pressure, electric push rods, etc. are often used to load the force, which requires high control and increases the cost. Mechanical loading such as weights is used, which is extremely inconvenient to operate.
The mechanical mechanism is used for direct displacement loading, which has a simple structure and low cost, but the loading force is relatively small, which is not suitable for the test of large bending moment rudder shafts, and the loading stiffness is too large, especially when the manual control is used, the loading force is difficult to control, and the slight feed movement , it will lead to a sudden change in the loading force
Method used
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[0027] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0028] Such as figure 1 As shown, a large bending moment loading device for the rudder shaft of an electric steering gear provided by the present invention includes a hand wheel and a limit plate 1, a double-sided screw sleeve 2, a guide key 3, an inner screw sleeve 4, a threaded seat 5, and a disc spring Component 6, anti-rotation key 7, bearing seat 8, guide column 9, tension and pressure sensor 10, adjustment stud 11, bearing seat 12, radial roller bearing 13, anti-rotation column 14, column 15, base 16, Guide sleeve 17, locking pin 18, electric steering gear 19, steering gear mounting seat 20, foundation platform 21;
[0029] The base platform 21 has a certain number and distance of T-shaped groove structures, whi...
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The invention relates to a rudder shaft large bending moment loading device and belongs to the technical field of electric steering engine testing. According to the invention, the formation and loading of force can be divided through the micro-feeding motion of a differential thread, the manual accurate control is achieved, the magnitude of a force range is changed through different combination forms of disc springs, the loading tests of different bending moments are realized, meanwhile, the reduction of the force transmission rigidity is realized, the manual rotation movement is finely divided, the structural force has the characteristics of slow loading and high accuracy and stability, the bending moment loading and testing requirements of a wide-range electric steering engine rudder shaft can be met, the structural form is simple, the cost is low, the operation is convenient, the size is small, torque loading devices can be independently used and used together, and the universalityis good.
Description
technical field [0001] The invention belongs to the technical field of electric steering gear testing, and in particular relates to a large bending moment loading device for a rudder shaft. Background technique [0002] The electric steering gear is the actuator for attitude adjustment and control of aerospace vehicles such as missiles and aircraft. During the working process, the force is complicated. In addition to the torque, there are also bending moments and other combined overturning moments. At present, for the test of the bending moment on the rudder shaft, hydraulic pressure and electric push rods are often used to load the force, which requires high control and increases the cost. Mechanical loading such as weights is used, which is extremely inconvenient to operate. The mechanical mechanism is used for direct displacement loading, which has a simple structure and low cost, but the loading force is relatively small, which is not suitable for the test of large bendi...
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IPC IPC(8): G01N3/20G01N3/02
CPCG01N3/20G01N3/02G01N2203/0023G01N2203/0041G01N2203/0202
Inventor 李创刘长张振宇李金钟孙瑜峰
Owner TIANJIN JINHANG COMP TECH RES INST